Home / 169,073.58-233,281.49-100,128.23

Finding the Fourth Proportional to 169,073.58, 233,281.49 and 100,128.23

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Solution

The fourth proportional to 169,073.58, 233,281.49 and 100,128.23 is: 138,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,073.58 : 233,281.49 = 100,128.23 : x
  2. Step 2: Convert to fraction form
    169,073.58/233,281.49 = 100,128.23/x
  3. Step 3: Cross multiply
    169,073.58x = 233,281.49 × 100,128.23
  4. Step 4: Simplify right side
    169,073.58x = 23,358,061,018.41
  5. Step 5: Solve for x
    x = 23,358,061,018.41/169,073.58
  6. Step 6: Final answer
    x = 138,153.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.